請問第四題的D、第五題🙏🏻

40 波的頻率與折射波的頻率相同。 太陽表面在2017年9月接連發生一起被稱作「太陽閃焰」的大型爆發,規模為10年來最大。科學家預計爆發所噴出 的帶電粒子團兩天後抵達地球,撞擊大氣層後產生電磁波,以致影響通訊品質。已知太陽與地球距離約為1.5x1011 公 C尺,光速約為3.0x108公尺/秒。下列敘述哪些正確? 0 (A)電磁波並無繞射與干涉的現象(B)電磁波在空間傳播須以帶電粒子為介質 1.5×103 500 3x68 (C) 電磁波具有隨時間作週期性變動的電場與磁場D 帶電粒子團脫離太陽時的速率約為8.7×105 公尺 / 秒 (E)帶電粒子團撞擊地球大氣層之後約8分鐘,地球上才能觀測到太陽閃焰影像。 折射線 我們常在生活中聽到2.4G無線這樣的名詞,根據美國聯邦通訊委員會(Federal Communications Commission)所定義, 2.4G是指在ISM 頻段中,2.4~2.4835 GHz之間的頻率,完整名稱為 Industrial Scientific Medical Band,是預留給工業、 ·科學及醫療使用的免費頻率,沒有任何使用上的限制。依本文所言,下列敘述哪些正確?(光速c=3x108m/s) (A) 2.4G 中的最長波長約為12.5cm (B)頻率愈大者,其傳播速度愈快 (C)波長愈長者,其傳播速度愈快 (D)只能在地球上傳播(E)可以在太空中使用。 甘零件油左直空中的波長約為300奈米,下列有關此電磁波的敘述,哪些正確? 去完的頻率約為1015 赫茲

請化學高手幫幫我 謝謝🙏

(C\¯]= 1.8x10 0.1 =18x109 = 1,2×105 《例3》:已知AgCl、AgBr、AgI之Ksp依次為1.0×10-10、5×10-13、1.0×10-16,今將1.0×10-3. 莫耳之 NaI,2.0×10-3莫耳之NaBr,3.0×103莫耳之NaCl與4.0×10-3莫耳之AgNO3 與 100mL 水混 合,達平衡時該混合液的敘述何者正確? 4x102 (A)產生AgCl、AgBr、AgI 三種沉澱 (B)[I]=2×108M (C)[Br]=5×10-14 M (D)[C]=2×102M(E)[Ag*]=5×10° M (A)失沉澱Aal→ AR

2.3.6求講解

1. (D) The old lady sat by the fireplace with her cat (D) 2. ( 13. to lying (C) to lie (D) lying ) The fishing boat moved slowly in the water at (B) in (C) for (D) with 3. (B) This castle appears quietly next to her. (A) lay (B) a large net floating behind it. (A) by dragons. (A) to attack (B) to be attacked (C) to have attacked (D) to have been attacked ) In this game, a person with his or her eyes (C) 4. ( has to spin around several times and then try to pin a tail onto a donkey. (A) cover (B) covering (C) covered (D) to cover a serious fight, but no one 5. (B) Before the accident happened, the couple seems knows the details. (A) having had (B) to have had (C) to have (D) was having Do. (a) Dave can't present the graphs and figures because he seems (A) left (B) leaving (C) to leave (D) to have left his laptop at home.

求解！

18 I left a message to my wife to tell her that I was about to go grocery shopping, and she needed anything from the store, she could call me anytime. (A) as if (B)what if (C)that if Dif Desperate and for no Amanda cried all night because her boyfriend decided to break un with har

請問這題怎麼解？不太懂詳解的算法，還是有什麼其他算法？

: 如右表,將「偶數」數列S={2,4,6,......,2n,......} 1|2|3|4 5 ·排成以下陣列,按右上至左下的規則,第1列第j行為 a, 12481422 例如 azs=16,azz=28,試求一般項a為何? M MB=& 2610 16 24 31 312 18 26 4 20 28 5 30 (2) (4,6) (8,10,12) (14, 16, 18, 20) 列 行 S 2 air

想問這題～為什麼不能寫成3× C2取1 ×1×6 / 6的三次減5的三次（我那時是想說第二個是偶數所以是3然後剩下兩個選一個是5另一個都可以／全部減都不出現5

重,則他視力不良的機率為 0役一顆公正的骰子3次,若至少出現1次5點的條件下,第二次出現偶數點的機率為 3 At CTTH Hebat PPF battle AILARE Aft/TH

想問基本權利和一般權利的差異

我想請問這兩題 謝謝

【6】 有一等差數列,已知第1項為j,第j項為讠,且≠j,則第tj項 為 Ai = j j = a₁ + (i-1)d a₁ = j a₁+ i=a+(-) d 【板中】 Ans : 0

請問這題的C 要怎麼知道是不是均勻的

ANDRO ⑥ 附圖中為雙子葉木本植物的樹幹橫切面之局部 (多選) 放大圖,有關構成甲的細胞敘述,哪些正確? ↓質表 (A)是死細胞 (B)其細胞壁的成分是纖維素和果膠質 (C)細胞壁不均勻加厚 (D)是由形成層分裂所產生的次級構造

想問16🙏再考什麼？不縮寫的話句型是什麼？

Ernest Hemingway (1899-1961) was an American author and journalist. His writing style, characterized by simplicity and understatement, influenced modern fiction, as 16 his life of adventure. Hemingway started his career as a journalist at 17. In the 1920s, he was sent to Europe as a newspaper correspondent to 17 such events as the Greek Revolution: During this period, he produced his early important works, including The Sun Also Rises. Among his later works, the most outstanding is The Old Man and the Sea (1952), which became perhaps his most famous book, finally winning him the Pulitzer Prize he had long been 18 Hemingway liked to portray soldiers, hunters, bullfighters-tough, at times primitive people whose courage and honesty are set against the brutal ways of modern society, and who in this 19 lose hope and faith. His straightforward_prose is particularly effective in his short stories, some of 20 are collected in Men Without Women (1927). In 1954, Hemingway was awarded the Nobel Prize in Literature. He died in Idaho in 1961. CBO (A) was 17. (A) cover DA18. (A) planned (B) being (B) approve (C) did (C) predict (D) doing (D) escape (B) achieved (C) examined 2. C19. (A) limitation (A) what (B) classification (C) confrontation (B) which (C) them (D) these (D) denied (D) modification -2-